The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A044985 Numbers whose base-3 representation contains exactly four 0's and no 1's. 1
 162, 488, 492, 504, 540, 648, 1466, 1478, 1482, 1514, 1518, 1530, 1622, 1626, 1638, 1674, 1946, 1950, 1962, 1998, 2106, 4400, 4436, 4448, 4452, 4544, 4556, 4560, 4592, 4596, 4608, 4868, 4880, 4884, 4916, 4920, 4932, 5024 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Robert Israel, Table of n, a(n) for n = 1..10000 MAPLE seq(op(sort(map(t -> 2*(3^n+add(3^(i-1), i=t)), combinat:-choose(n, n-4)))), n=4..7); # Robert Israel, May 01 2018 MATHEMATICA A044985list[upto_]:=Select[Range[upto], DigitCount[#, 3, 0]==4&&DigitCount[#, 3, 1]==0&]; A044985list[10000] (* Paolo Xausa, Aug 02 2023 *) CROSSREFS Cf. A007089. Sequence in context: A085446 A274027 A206210 * A302283 A186844 A319915 Adjacent sequences: A044982 A044983 A044984 * A044986 A044987 A044988 KEYWORD nonn,base AUTHOR Clark Kimberling STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified November 30 23:40 EST 2023. Contains 367464 sequences. (Running on oeis4.)